Aib valve



T. J. STOKES AIR VALVE A ril 12, 1927.

Filed April 24, 1926 (M lo Imago.

3 zwmzw Patented Apr. 12, 1927.

UNITED STATES PATENT OFFICE.

THOMAS J. STOKES, OF JEFFERSON, TEXAS, ASSIGNOR OF ONE-HALF TO HORACE O.

NELSON, OF JEFFERSON, TEXAS.

AIR VALVE.

Application filed. April 24:, 1926. Serial No. 104,503.

This invention aims to provide novel means for mounting an air-controlling valve in the air inlet of a carbureter.

Figure 1. shows in elevation, a carburetor and attendant parts, wherewith the device formii'ig the subject matter of this application has been assembled; Figure 2 is a transverse section taken through the air inlet of the carburetor; Figure 3 is a top plan of the invention per se; Figure 41 is a section of the device delineated in Figure 3; Figure 5 is a sectional view showing the overlapped tongues.

The inlet manifold of an internal combustion engine is shown in the drawings and is marked by the numeral 1, the carbureter appearing at 2, and the air inlet of the carbureter being shown at 3.

A partition 4 is removably held in the air inlet 3, the partition being provided at its periphery with a circumferential flange 17, the partition 4 having, at its periphery, a circumferential slit 5 forming, in the flange 17, an outer tongue 6, and an inner tongue 7, the tongues 6 and 7 being overlapped on each other, and the outer tongue 6 having a, rectangularly disposed wing 8 which overlaps a part of the slit 5, so as to cover a part of the slit, when the tongues 6 and 7 expand outwardly, to aid in holding the partition 4 in the air inlet 3, the said tongues being resilient, and being outwardly expansible, as and for the purpose specified.

The partition 4 has an opening 9, about which extends a trough-shaped member 10, a valve 11 being hinged at 12 to the partition 4 and being adapted to close the upper part of the trough-shaped member 10, the valve having depending Wings 14: which overlap the sides of the trough-shaped member 10. At its free end, the valve 11 may carry a weight 15 made of solder or any other like material. the construction being such that the weight 15 may be filed elf readily, should an adjustment be desired, the weight, obviously, serving to aid in holding the valve ll closed. The valve ll is disposed at an acute angle to the axis of the troughshaped member 10 and, therefore, to the stream of air proceeding through the said trough-shaped member. As the suction through the trough-shaped member ll) increases, the valve 11 will open on its hinge 12, and admit more air. As the suction decreases, the valve will. move to or toward a closed position, the valve being light, so that it will remain in any position which the current of air has caused it to assume. A stop 16 on the rear end of the valve 11 cooperates with the partition a and prevents the valve from opening too far. When the valve 11 is in its closed position, the right hand end of the trouglrshaped member 10 (Figs. 1 and l) is still open.

What is claimed is 1. In a device of the class described, a partition adapted for mounting in an air intake of a carburetor, the partition having a circumferential flange, and there being a slit in the partition which forms overlapped, outwardly expansible tongues in the flange, one tongue having a wing extended across the slit, a valve coi'itrolling the passage of air through the partition, and means for mounting the valve HM uibly on. the partition.

2. In a device of the class described, a partition adapted for mounting in. an air intake of a carliiuretor, the partition having an opening, a reduced trongh-shaped member carried by the partition and extended part-way arouiul the opening, a. gravity valve and means for mounting the valve for hinged movement, the valve constituting a closure for the upper part of the trough-shaped member, that end of the trough-shaped member which is aifl iacent to the free end of the valve being open when the valve is closed.

1n testin'iony that I claim the foregoing as my own, I have hereto aiiixed my signature.

THOMAS J. STOKES. 

